As discussed in our client alert of June 24, 2014, the U.S. Supreme Court in Utility Air Regulatory Group v. EPA (UARG) invalidated EPA’s greenhouse-gas (GHG) regulations to the extent those regulations required stationary sources to obtain Prevention of Significant Deterioration (PSD) and/or Title V major source permits based solely on the source’s GHG emissions (termed “non-anyway” sources). On July 24, 2014, EPA issued a memorandum to the regional administrators outlining several next steps following the UARG decision.